Title:
CONTACTLESS POWER TRANSMISSION DEVICE, CONTACTLESS POWER RECEPTION DEVICE, AND CONTACTLESS POWER TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/162859
Kind Code:
A1
Abstract:
This contactless power transmission device transmits power to a contactless power reception device having a reception-side coil and a reception-side resonator which resonates with the reception-side coil. The contactless power transmission device has a transmission unit including a transmission-side coil, a transmission-side resonator which resonates with the transmission-side coil, and an inverter for feeding power to the transmission-side resonator. The inductance value of the transmission-side coil and/or the capacitance value of the transmission-side resonator is set so that the frequency range in which the phase difference of a primary-side current flowing through the transmission unit relative to a primary-side voltage applied to the transmission unit is zero or above is wider than when the inductance value of the reception-side coil and the inductance value of the transmission-side coil are equal to each other, as are the capacitance value of the reception-side resonator and the capacitance value of the transmission-side resonator.
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Inventors:
KOIZUMI MASAYOSHI
OHASHI OSAMU
OTA TOMOHIRO
YAMAMOTO TAKESHI
OHASHI OSAMU
OTA TOMOHIRO
YAMAMOTO TAKESHI
Application Number:
PCT/JP2015/001878
Publication Date:
October 29, 2015
Filing Date:
April 01, 2015
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02J17/00
Domestic Patent References:
| WO2013111307A1 | 2013-08-01 |
Foreign References:
| JP2013153627A | 2013-08-08 | |||
| JP2010288441A | 2010-12-24 |
Other References:
See also references of EP 3136542A4
Attorney, Agent or Firm:
FUJII, Kentaro et al. (JP)
Fujii Kentaro (JP)
Fujii Kentaro (JP)
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